Split disk for holding pulleys to shafts.



, N0.653,3|3. Patented July l0, |900..

W. H. F. RAIFSNY'DER.

SPLIT DISK FOR HOLDING PULLEYS TQ SHAFTS.

(Application filed May 19, 1900.)

I (No Model.)

WITNESSES.-

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NrrED STATES PATENT FFICE.

WILLIAM H. F. RAlFsNY DERpOF SAOKETT, PENNSYLVANIA.

SPLIT D ISK F'OR HOLDING PULLEYS TO SHAFTS.

SPECIFIOATION forming part of Letters Patent No. 653,313,: dated July 10, 1900. Application filed May 19, 1900. Serial No. 17,275. (No model.)

xand useful Improvements in Split Disks for Holding Pulleys to Shafts; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to'the accompanying drawings, and-tothe letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in devices for holding pulleys and causing the same to rotate with a shafting, and especially to the provision of a split disk which is adapted to be keyed to a shaft and fastened to the face of the pulley or wheel, means being provided to hold the disk to the shaft.

More specifically, the invention consists in a split disk adapted to engage a shaft to which it is keyed and the provision of a clamping-block adapted to partially surround the shaft and held to the disk by means of a clevis and a wedged block held between the clamping-block and lugs on the face of the disk.

To these ends and to such others as the invention may pertain the same consists, further, in the novel construction, combination, and arrangement of parts, as will be hereinafter more fully described and then specifically defined in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the let ters of reference marked thereon, form part of this application, and in which drawings Figure l is a side elevation of my improved split disk for holding a pulley to rotate with a shaft. Fig. 2 is an elevation of the rear face of the disk, which is adapted to be held against the face of the pulley. Fig. 3 is a perspective view of the disk with clampingblock removed, and Fig. 4: is aperspective View of the clamping-block.

Reference now being had to the details of the drawings by letter, A designates the split disk, which is recessed in from its circumference, as at A, the inner end of said recess terminating at a location slightly beyond the center of the disk and is rounded to form a in the shaft to which the disk is to be keyed.

On opposite faces of said disk are the shoulders O and C, said shoulder 0 having apertures D through the laterally-projecting por tions of said shoulder. The outer circumference of the shoulders O and O are preferably curved, as, shown.

E is a segment forming a portion of the disk, which is removable, and when adjusted in its place in the recessed portion of the disk is adapted to fill up the space formed by re cessing the disk, and the inner end of said segment is concaved and has shoulders F and G, the former of which is concaved and has flat faces adapted to rest upon the flat faces of the shoulder O, and the laterally-projecting portions of said shoulderF has apertures F, which when the said segment is adjusted in place register with the apertures D. On each side of the recess in said disk, on one face of the latter, are the lugs H, and after the segmentE has been adjusted in place in said recess a wedge-shaped member K is adapted to be inserted between the flattened ends of said lugs and the outer flattened face of the shoulder F. In order to hold said segment in place, a U-shaped bolt M is passed about the curved circumference of the shoulder 0 and its threaded ends passed through the registering apertures D and F, respectively, in the shoulders C and F, and by the use of tightening-nuts on the threaded ends of said bolt the segment-block may be securely held to the disk andsecu rely fastening said disk to the shaft. The disk may be fastened to the Wheel or pulley by means of bolts, screws, or other fastening means, and when thus secured to the pulley or wheel is caused to rotate with the disk, as will be readily understood.

On the opposite walls of the recess A are shoulders N, which extend across the shoulders O and C, and upon said shouldersN the opposite edges of the flanged end of said segment-block E are adapted to rest, and when the segment is held on said shoulders the cir- From the foregoing it will be observed that V the disk may be readily fitted to any wheel or shaft-ing, either with slot or without, and as easily removed therefrom.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is-

v 1. A device for holding a pulley to rotate with a shaft, comprising a disk, recessed in from its circumference, a segment-block which is concaved at its inner end, and adapted with the inner curved end of said recess to embrace a shaft, a U-shaped bolt and tightening-nuts for holding said segment to the disk, projections on the face of said disk, and a wedgeshaped block interposed between a shoulder on said segment, and said projections, as set forth.

2. A device for holding pulley-wheels to rotate with the shaft, comprising a disk recessed in fromits circumference and terminating in a curved shoulder or flange on the opposite faces of said disk, a segment-block having flanges projecting from its opposite faces, and recessed at its inner end, a U-shaped bolt passing about one of the flanges of the disk, and passing through registering apertures in the flanges of the disk and segment, threaded nuts mounted on said bolt, lugs on the face of the disk, and a wedge-shaped member interposed between said lugs and the flat face of the flanged portion of the segment, and a key for holding the disk to the shaft.

3. A device for holding a pulley to rotate with the shaft, comprising the disk recessed in from its circumference, flanges on opposite faces of said disk, which are concaved, a segment-block having flanges on its opposite faces, and concaved on its inner end, the flanges of said segment-block adapted to be held flat against the faces of the flanges of said disk, the lower end of the segment adapted to rest on shoulders on opposite walls of the recessed portion of the disk, lugs on the face of the disk, on opposite sides of said recess, the wedge-shaped member interposed between the ends of said lugs and the flattened portion of one of the flanges of said segment, and the U-shaped bolt for holding the seg ment to the disk, as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM H. F. RAIFSNYDER.

Witnesses:

J. M. MITCHELL, JAMES CAMPBELL. 

